Grammarly vs Oracle Interview Questions
Grammarly lists 30 LeetCode interview questions while Oracle lists 314. They share 17 problems — 57% of Grammarly's bank and 5% of Oracle's. Focus on the overlap first, then drill into 13 Grammarly-only and 297 Oracle-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 17 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Grammarly and Oracle.
Step 2 — Company-specific depth: Add Grammarly-specific problems like Vowel Spellchecker, Repeated DNA Sequences, Perfect Number and Oracle-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Oracle skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
17 Shared Questions
High-priority problems to practice for both Grammarly and Oracle.
| Problem | Difficulty |
|---|---|
| Merge Intervals | Medium |
| Remove All Adjacent Duplicates In String | Easy |
| Search in Rotated Sorted Array | Medium |
| Insert Delete GetRandom O(1) | Medium |
| Remove All Adjacent Duplicates in String II | Medium |
| Climbing Stairs | Easy |
| Sqrt(x) | Easy |
| Generate Parentheses | Medium |
| Logger Rate Limiter | Easy |
| Non-overlapping Intervals | Medium |
| Evaluate Reverse Polish Notation | Medium |
| Word Search | Medium |
| Implement Trie (Prefix Tree) | Medium |
| Word Break II | Hard |
| Number of Islands | Medium |
| Trapping Rain Water | Hard |
| Word Break | Medium |
Unique to Grammarly (13)
Problems in Grammarly's list that do not appear at Oracle.
Unique to Oracle (297)
Problems in Oracle's list that do not appear at Grammarly.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Two Sum | Easy |
| Group Anagrams | Medium |
| Top K Frequent Elements | Medium |
| Sliding Window Maximum | Hard |
| Valid Parentheses | Easy |
| Merge k Sorted Lists | Hard |
| Meeting Rooms II | Medium |
| Longest Palindromic Substring | Medium |
| Spiral Matrix | Medium |
| Minimum One Bit Operations to Make Integers Zero | Hard |
Frequently Asked Questions
How many LeetCode questions do Grammarly and Oracle share?
Grammarly and Oracle share 17 LeetCode interview questions. 13 problems appear only in Grammarly's list and 297 appear only in Oracle's list.
What topics overlap most between Grammarly and Oracle?
The most common shared topics between Grammarly and Oracle are Array (10 shared questions), String (7 shared questions), Dynamic Programming (6 shared questions), Hash Table (5 shared questions), Stack (4 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Grammarly or Oracle?
Grammarly has 7 Easy, 19 Medium, and 4 Hard questions. Oracle has 61 Easy, 194 Medium, and 59 Hard questions. Oracle has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Grammarly and Oracle?
Start with the 17 shared problems since they cover what both companies ask most often. Then add 13 Grammarly-specific and 20 Oracle-specific questions to round out your prep.